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ex
- 矩形序列余弦序列的生成 各序列dft fft变换 fft的实现-Rectangular sequence cosine sequence generated dft fft transform the sequence of implementation of fft
Preemphasis
- 傅里叶变换能将满足一定条件的某个函数表示成三角函数(正弦和/或余弦函数)或者它们的积分的线性组合。利用傅里叶变换可对语音信号消噪。-ourier transform to meet certain conditions can be expressed as a function of trigonometric functions (sine and/or cosine functions), or their integral linear combination. Fourier tran
IMAGE-PROCESS
- 实现数字图像基本的各种处理(直方图统计,几何变换,二值化),三大变换(傅里叶,沃尔什,离散余弦),各种复原方法-Basic all kinds of digital image processing (histogram statistics, geometry transformation, binarization), three transform (Fourier, Walsh, discrete cosine), all kinds of recovery methods
Fourier-transform
- 傅立叶变换能将满足一定条件的某个函数表示成三角函数(正弦和/或余弦函数)或者它们的积分的线性组合。-Fourier transform can meet certain conditions expressed as a function trigonometric (sine and/or cosine functions) or their integral linear combinations.
图形图像处理程序例子
- 1.二值化处理的源代码 2.对角镜像处理 3.离散余弦变换处理 4.傅立叶变换处理 5.(图像复原) 6.加入随机噪声 7.直方图均衡处理 8.几何变换 9.图像处理头文件 ...... -1. 2 value of the source code for two. Right angle image processing 3. Discrete Cosine Transform 4. Fourier transform handle
Discrete-Cosine-Transform
- 离散余弦变换,尤其是它的第二种类型,经常被信号处理和图像处理使用,用于对信号和图像(包括静止图像和运动图像)进行有损数据压缩。有测试图片和源代码-Discrete cosine transform, in particular its second type are often used for signal processing and image processing for the signal images (including still images and moving image
3MATLABYUYIN
- 3.1语音信号的同态处理和倒谱分析30 3.1.1同态处理的基本原理30 3.1.2复倒谱和倒谱31 3.2离散余弦变换34 3.3Mel频率倒谱系数的分析37 3.3.1Mel滤波器组37 3.3.2MFCC特征参数提取38 3.4小波和小波包变换43 3.4.1小波变换43 3.4.2小波包变换44 3.4.3小波包算法45 3.4.4MATLAB中一维小波和小波包变换函数46 3.4.5MATLAB语音信号小波和小波包变换的例子49 3.
tftb-0.1
- 电磁波的传播,利用局部余弦变换在均匀介质中。-Propagation of electromagnetic waves, using local cosine transform in a homogeneous medium.
jubu
- 局部余弦变换,对参数的相关分析以及小波束的传播。-Local cosine transform, correlation analysis, and the parameters of the small beam spread.
f2t
- 这是一个实现升余弦滚降函数的一段MATLAB代码,在变换不同的滚降系数可以很清楚的观察函数。-This is a realization raised cosine function for some MATLAB code, in the transformation of different roll-off factor can be clearly observed functions.
gen_dct
- 生成一维离散余弦变换矩阵,可用于对一维信号进行压缩-Generate a one-dimensional discrete cosine transform matrix that can be used for one-dimensional signal is compressed
DCT
- 按照离散余弦变换的定义编写的C++程序,可以在VC上运行-DCT C++
stxndavd
- 离散余弦变换,用于图像压缩方面 JPEG 压缩标准里面就有他-Discrete cosine transform for image compression in JPEG compression standard is he
VC++图像处理典型算法完整演示源代码
- VC++图像处理典型算法完整演示源代码,实现傅里叶变换、离散余弦变换等经典图形处理算法(VC++ image processing typical algorithm, complete demonstration source code)
matlab实现DCt
- 用MATLAB实现DCT水印算法。信号经过DCT后,从空间域变换到频域。是一种正交变换的方法。是图像处理中应用即为广泛的傅氏变换中一种特殊的情况(被展开函数是实偶函数,再离散化,即为离散余弦变换)。 同傅氏变换一样,有正反两种变换。(DCT watermarking algorithm is implemented with MATLAB.)
图像频域操作全系列
- 对图像进行傅里叶变换,离散余弦变换,小波分解,拉东变换等(Two layers of wavelet decomposition for image)
JPEGCompression-master
- matlab基于余弦变换及霍夫曼编码实现jpeg压缩和解压,(Matlab implements JPEG compression and decompression)
数字2
- 三角波和反三角波序列的时域和FFT幅频特性,余弦信号傅里叶变换,比较DFT和FFT程序的运行时间(The time-domain and FFT amplitude frequency characteristics of the triangular and anti triangular wave sequences, cosine signal Fu Liye transform, and the running time of DFT and FFT programs are compa